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1 lt1358/lt1359 135859fb wideband amplifiers buffers active filters data acquisition systems photodiode amplifiers dac i-to-v converter dual and quad 25mhz, 600v/ s op amps the lt1358/lt1359 are dual and quad low power high speed operational amplifiers with outstanding ac and dc performance. the amplifiers feature much lower supply current and higher slew rate than devices with comparable bandwidth. the circuit topology is a voltage feedback amplifier with matched high impedance inputs and the slewing performance of a current feedback amplifier. the high slew rate and single stage design provide excellent settling characteristics which make the circuit an ideal choice for data acquisition systems. each output drives a 500 ? load to 12.5v with 15v supplies and a 150 ? load to 3v on 5v supplies. the amplifiers are stable with any capacitive load making them useful in buffer applications. the lt1358/lt1359 are members of a family of fast, high performance amplifiers using this unique topology and employing linear technology corporation? advanced bipolar complementary processing. for a single amplifier version of the lt1358/lt1359 see the lt1357 data sheet. for higher bandwidth devices with higher supply currents see the lt1360 through lt1365 data sheets. for lower supply current amplifiers see the lt1354 and lt1355/ lt1356 data sheets. singles, duals, and quads of each amplifier are available. a v = ? large-signal response features descriptio u applicatio s u typical applicatio u , ltc and lt are registered trademarks of linear technology corporation. c-load is a trademark of linear technology corporation. all other trademarks are the property of their respective owners. 135859 ta01 0.1 f5k 6pf v out 5k 565a-type dac inputs 12 + 1/2 lt1358 135859 ta02 vi k v a lsb os os out vol + () +< 51 ? 25mhz gain bandwidth 600v/ s slew rate 2.5ma maximum supply current per amplifier unity-gain stable c-load tm op amp drives all capacitive loads 8nv/ hz input noise voltage 600 v maximum input offset voltage 500na maximum input bias current 120na maximum input offset current 20v/mv minimum dc gain, r l =1k 115ns settling time to 0.1%, 10v step 220ns settling time to 0.01%, 10v step 12.5v minimum output swing into 500 ? 3v minimum output swing into 150 ? specified at 2.5v, 5v, and 15v lt1358 is available in 8-pin pdip and so packages lt1359 is available in 14-pin pdip, 14-pin and 16-pin so packages
2 lt1358/lt1359 135859fb total supply voltage (v + to v ) ............................... 36v differential input voltage (transient only) (note 2)................................... 10v input voltage ............................................................ v s output short-circuit duration (note 3) ............ indefinite operating temperature range (note 7) ...40 c to 85 c absolute axi u rati gs w ww u package/order i for atio uu w (note 1) specified temperature range (note 8) ....40 c to 85 c maximum junction temperature (see below) plastic package ................................................ 150 c storage temperature range ..................65 c to 150 c lead temperature (soldering, 10 sec).................. 300 c v + d 14 13 12 11 10 9 8 7 6 5 4 3 2 1 out a ?n a +in a +in b ?n b out b out c v ?n d out d top view a +in d +in c ?n c c b s package 14-lead plastic so t jmax = 150 c, ja = 150 c/ w v + d 16 15 14 13 12 11 10 7 6 5 4 3 2 1 out a ?n a +in a +in b ?n b out b out c 9 8 nc nc v ?n d out d top view a +in d +in c ?n c c b s package 16-lead plastic so v + d 14 13 12 11 10 9 8 7 6 5 4 3 2 1 out a ?n a +in a +in b ?n b out b out c v ?n d out d top view a +in d +in c ?n c c b n package 14-lead pdip t jmax = 150 c, ja = 110 c/ w t jmax = 150 c, ja = 190 c/ w 8 7 6 5 4 3 2 1 in a +in a v + top view s8 package 8-lead plastic so out a out b v in b +in b a b 8 7 6 5 4 3 2 1 in a +in a v + top view n8 package 8-lead pdip out a out b v in b +in b a b lt1359cs lt1359is order part number lt1359cn lt1359in *the temperature grade is identified by a label on the shipping container. consult ltc marketing for parts specified with wider operating temperature ranges. order part number order options tape and reel: add #tr lead free: add #pbf lead free tape and reel: add #trpbf lead free part marking: http://www.linear.com/leadfree/ order part number lt1358cn8 lt1358in8 lt1358cs8 lt1358is8 order part number s8 part marking 1358 1358i t jmax = 150 c, ja = 130 c/ w t jmax = 150 c, ja = 160 c/ w lt1359cs14 lt1359is14 order part number
3 lt1358/lt1359 135859fb t a = 25 c, v cm = 0v unless otherwise noted. electrical characteristics symbol parameter conditions v supply min typ max units v os input offset voltage 15v 0.2 0.6 mv 5v 0.2 0.6 mv 2.5v 0.3 0.8 mv i os input offset current 2.5v to 15v 40 120 na i b input bias current 2.5v to 15v 120 500 na e n input noise voltage f = 10khz 2.5v to 15v 8 nv/ hz i n input noise current f = 10khz 2.5v to 15v 0.8 pa/ hz r in input resistance v cm = 12v 15v 35 80 m ? input resistance differential 15v 6 m ? c in input capacitance 15v 3 pf input voltage range + 15v 12.0 13.4 v 5v 2.5 3.5 v 2.5v 0.5 1.1 v input voltage range 15v 13.2 12.0 v 5v 3.3 2.5 v 2.5v 0.9 0.5 v cmrr common mode rejection ratio v cm = 12v 15v 83 97 db v cm = 2.5v 5v 78 84 db v cm = 0.5v 2.5v 68 75 db psrr power supply rejection ratio v s = 2.5v to 15v 92 106 db a vol large-signal voltage gain v out = 12v, r l = 1k 15v 20 65 v/mv v out = 10v, r l = 500 ? 15v 7 25 v/mv v out = 2.5v, r l = 1k 5v 20 45 v/mv v out = 2.5v, r l = 500 ? 5v 7 25 v/mv v out = 2.5v, r l = 150 ? 5v 1.5 6 v/mv v out = 1v, r l = 500 ? 2.5v 7 30 v/mv v out output swing r l = 1k, v in = 40mv 15v 13.3 13.8 v r l = 500 ? , v in = 40mv 15v 12.5 13.0 v r l = 500 ? , v in = 40mv 5v 3.5 4.0 v r l = 150 ? , v in = 40mv 5v 3.0 3.3 v r l = 500 ? , v in = 40mv 2.5v 1.3 1.7 v i out output current v out = 12.5v 15v 25 30 ma v out = 3v 5v 20 25 ma i sc short-circuit current v out = 0v, v in = 3v 15v 30 42 ma sr slew rate a v = 2, (note 4) 15v 300 600 v/ s 5v 150 220 v/ s full power bandwidth 10v peak, (note 5) 15v 9.6 mhz 3v peak, (note 5) 5v 11.7 mhz gbw gain bandwidth f = 200khz, r l = 2k 15v 18 25 mhz 5v 15 22 mhz 2.5v 20 mhz t r , t f rise time, fall time a v = 1, 10%-90%, 0.1v 15v 8 ns 5v 9 ns overshoot a v = 1, 0.1v 15v 27 % 5v 27 % propagation delay 50% v in to 50% v out , 0.1v 15v 9 ns 5v 11 ns t s settling time 10v step, 0.1%, a v = 1 15v 115 ns 10v step, 0.01%, a v = 1 15v 220 ns 5v step, 0.1%, a v = 1 5v 110 ns 5v step, 0.01%, a v = 1 5v 380 ns
4 lt1358/lt1359 135859fb symbol parameter conditions v supply min typ max units v os input offset voltage 15v 0.8 mv 5v 0.8 mv 2.5v 1.0 mv input v os drift (note 6) 2.5v to 15v 58 v/ c i os input offset current 2.5v to 15v 180 na i b input bias current 2.5v to 15v 750 na cmrr common mode rejection ratio v cm = 12v 15v 81 db v cm = 2.5v 5v 77 db v cm = 0.5v 2.5v 67 db psrr power supply rejection ratio v s = 2.5v to 15v 90 db a vol large-signal voltage gain v out = 12v, r l = 1k 15v 15 v/mv v out = 10v, r l = 500 ? 15v 5v/mv v out = 2.5v, r l = 1k 5v 15 v/mv v out = 2.5v, r l = 500 ? 5v 5v/mv v out = 2.5v, r l = 150 ? 5v 1v/mv v out = 1v, r l = 500 ? 2.5v 5v/mv v out output swing r l = 1k, v in = 40mv 15v 13.2 v r l = 500 ? , v in = 40mv 15v 12.2 v r l = 500 ? , v in = 40mv 5v 3.4 v r l = 150 ? , v in = 40mv 5v 2.8 v r l = 500 ? , v in = 40mv 2.5v 1.2 v i out output current v out = 12.2v 15v 24.4 ma v out = 2.8v 5v 18.7 ma i sc short-circuit current v out = 0v, v in = 3v 15v 25 ma sr slew rate a v = 2, (note 4) 15v 225 v/ s 5v 125 v/ s gbw gain bandwidth f = 200khz, r l = 2k 15v 15 mhz 5v 12 mhz channel separation v out = 10v, r l = 500 ? 15v 98 db i s supply current each amplifier 15v 2.9 ma each amplifier 5v 2.8 ma electrical characteristics the denotes the specifications which apply over the temperature range 0 c t a 70 c, v cm = 0v unless otherwise noted. differential gain f = 3.58mhz, a v = 2, r l = 1k 15v 0.1 % 5v 0.1 % differential phase f = 3.58mhz, a v = 2, r l = 1k 15v 0.50 deg 5v 0.35 deg r o output resistance a v = 1, f = 100khz 15v 0.3 ? channel separation v out = 10v, r l = 500 ? 15v 100 113 db i s supply current each amplifier 15v 2.0 2.5 ma each amplifier 5v 1.9 2.4 ma t a = 25 c, v cm = 0v unless otherwise noted. electrical characteristics symbol parameter conditions v supply min typ max units
5 lt1358/lt1359 135859fb note 1: absolute maximum ratings are those values beyond which the life of a device may be impaired. note 2: differential inputs of 10v are appropriate for transient operation only, such as during slewing. large, sustained differential inputs will cause excessive power dissipation and may damage the part. see input considerations in the applications information section of this data sheet for more details. note 3 : a heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted indefinitely. note 4 : slew rate is measured between 10v on the output with 6v input for 15v supplies and 1v on the output with 1.75v input for 5v supplies. note 5 : full power bandwidth is calculated from the slew rate measurement: fpbw = (sr)/2 v p . note 6 : this parameter is not 100% tested. note 7. the lt1358c/lt1359c and lt1358i/lt1359i are guaranteed functional over the operating temperature range of ?0 c to 85 c. note 8: the lt1358c/lt1359c are guaranteed to meet specified performance from 0 c to 70 c. the lt1358c/lt1359c are designed, characterized and expected to meet specified performance from 40 c to 85 c, but are not tested or qa sampled at these temperatures. the lt1358i/lt1359i are guaranteed to meet specified performance from ?0 c to 85 c. symbol parameter conditions v supply min typ max units v os input offset voltage 15v 1.3 mv 5v 1.3 mv 2.5v 1.5 mv input v os drift (note 6) 2.5v to 15v 58 v/ c i os input offset current 2.5v to 15v 300 na i b input bias current 2.5v to 15v 900 na cmrr common mode rejection ratio v cm = 12v 15v 80 db v cm = 2.5v 5v 76 db v cm = 0.5v 2.5v 66 db psrr power supply rejection ratio v s = 2.5v to 15v 90 db a vol large-signal voltage gain v out = 12v, r l = 1k 15v 10.0 v/mv v out = 10v, r l = 500 ? 15v 2.5 v/mv v out = 2.5v, r l = 1k 5v 10.0 v/mv v out = 2.5v, r l = 500 ? 5v 2.5 v/mv v out = 2.5v, r l = 150 ? 5v 0.6 v/mv v out = 1v, r l = 500 ? 2.5v 2.5 v/mv v out output swing r l = 1k, v in = 40mv 15v 13.0 v r l = 500 ? , v in = 40mv 15v 12.0 v r l = 500 ? , v in = 40mv 5v 3.4 v r l = 150 ? , v in = 40mv 5v 2.6 v r l = 500 ? , v in = 40mv 2.5v 1.2 v i out output current v out = 12v 15v 24.0 ma v out = 2.6v 5v 17.3 ma i sc short-circuit current v out = 0v, v in = 3v 15v 24 ma sr slew rate a v = 2, (note 4) 15v 180 v/ s 5v 100 v/ s gbw gain bandwidth f = 200khz, r l = 2k 15v 14 mhz 5v 11 mhz channel separation v out = 10v, r l = 500 ? 15v 98 db i s supply current each amplifier 15v 3.0 ma each amplifier 5v 2.9 ma electrical characteristics the denotes the specifications which apply over the temperature range 40 c t a 85 c, v cm = 0v unless otherwise noted. (note 8)
6 lt1358/lt1359 135859fb supply voltage ( v) supply current (ma) 3.0 2.5 2.0 1.5 1.0 0.5 10 5 01520 135859 g01 ?5 c 25 c 125 c supply voltage ( v) v common mode range (v) 2.0 0.5 1.0 1.5 v + 1.0 0.5 2.0 1.5 10 5 01520 135859 g02 t a = 25 c ? v os < 1mv input common mode voltage (v) 200 input bias current (na) 0 100 400 300 200 100 15 10 0 10 15 5 ? 135859 g03 v s = 15v t a = 25 c i b = i b + + i b 2 temperature ( c) 0 input bias current (na) 150 100 50 450 400 300 350 200 250 50 ?5 25 100 125 50 75 0 v s = 15v i b = ? ? i b + + i b 2 135859 g04 frequency (hz) 10 1 input voltage noise (nv/ hz) 10 100 0.1 input current noise (pa/ hz) 1 10 e n 1k 100 100k 10k 135859 g05 v s = 15v t a = 25 c a v = 101 r s = 100k i n load resistance ( ? ) 10 50 open-loop gain (db) 60 100 100 10k 135859 g06 80 70 1k 90 v s = 5v v s = 15v t a = 25 c temperature ( c) 93 open-loop gain (db) 95 94 101 100 99 98 97 96 50 ?5 25 100 125 50 75 0 v s = 15v r l = 1k v o = 12v 135859 g07 supply voltage ( v) v output voltage swing (v) 1 2 3 v + ? ? ? 10 5 01520 135859 g08 r l = 1k r l = 500 ? r l = 500 ? t a = 25 c r l = 1k output current (ma) v +0.5 output voltage swing (v) 1.5 2.0 1.0 0.5 v + 1.0 1.5 2.0 2.5 2.5 50 40 ?0 30 40 50 01020 ?0 ?0 135859 g09 v s = 5v v in = 100mv 85 c 85 c 25 c 25 c ?0 c ?0 c open-loop gain vs temperature input noise spectral density input bias current vs temperature open-loop gain vs resistive load output voltage swing vs supply voltage output voltage swing vs load current input common mode range vs supply voltage supply current vs supply voltage and temperature input bias current vs input common mode voltage typical perfor a ce characteristics uw
7 lt1358/lt1359 135859fb temperature ( c) 25 output short-circuit current (ma) 30 65 60 55 40 45 35 50 50 ?5 25 100 125 50 75 0 135859 g10 v s = 5v source sink settling time (ns) ?0 output swing (v) ? ? ? 10 8 6 4 ? 2 0 50 150 250 200 100 135859 g11 v s = 15v a v = 1 10mv 10mv 1mv 1mv settling time (ns) ?0 output swing (v) ? ? ? 10 8 6 4 ? 2 0 50 150 250 200 100 135859 g12 v s = 15v a v = ? 10mv 10mv 1mv 1mv frequency (hz) 10k 0.01 output impedance ( ? ) 0.1 1k 100k 100m 135859 g13 1m 1 10m 10 100 a v = 100 a v = 10 a v = 1 v s = 15v t a = 25 c ? ?0 voltage magnitude (db) ? ? 135859 g19 4 0 8 ? 6 2 10 frequency (hz) 100k 1m 100m 10m v s = 15v t a = 25 c a v = ? c = 1000pf c = 500pf c = 100pf c = 50pf c = 0 supply voltage ( v) 18 gain bandwidth (mhz) 26 22 38 34 30 20 28 24 36 32 30 phase margin (deg) 38 34 50 48 44 40 36 32 46 42 10 5 01520 135859 g15 t a = 25 c phase margin gain bandwidth temperature ( c) 18 gain bandwidth (mhz) 22 38 34 26 30 20 36 32 24 28 30 phase margin (deg) 32 34 50 48 44 46 38 40 36 42 50 ?5 25 100 125 50 75 0 135859 g16 phase margin v s = 5v gain bandwidth v s = 5v phase margin v s = 15v gain bandwidth v s = 15v frequency (hz) 100k ? gain (db) ? ? 5 1m 100m 135859 g17 1 ? 10m 3 ? 2 0 4 15v 2.5v t a = 25 c a v = 1 r l = 2k 5v frequency (hz) 100k ? gain (db) ? ? 5 1m 100m 135859 g18 1 ? 10m 3 ? 2 0 4 15v 2.5v t a = 25 c a v = ? r f = r g = 2k 5v gain bandwidth and phase margin vs temperature output impedance vs frequency gain bandwidth and phase margin vs supply voltage frequency response vs capacitive load frequency response vs supply voltage (a v = 1) frequency response vs supply voltage (a v = ?) settling time vs output step (noninverting) output short-circuit current vs temperature settling time vs output step (inverting) typical perfor a ce characteristics uw
8 lt1358/lt1359 135859fb frequency (hz) 10k ?0 gain (db) 0 70 100k 100m 135859 g14 1m 30 40 10 20 10m 50 60 phase (deg) 120 40 60 0 20 80 100 v s = 15v v s = 5v v s = 5v gain v s = 15v phase t a = 25 c a v = ? r f = r g = 2k frequency (hz) 0 power supply rejection ratio (db) 40 20 100 80 60 100k 1m 1k 10k 100 10m 100m 135859 g20 v s = 15v t a = 25 c +psrr psrr frequency (hz) 0 common-mode rejection ratio (db) 40 20 120 100 80 60 1k 100m 10m 1m 100k 10k 135859 g21 v s = 15v t a = 25 c supply voltage ( v) 0 slew rate (v/ s) 200 1000 800 600 400 015 10 5 135859 g22 t a = 25 c a v = ? r f = r g = 2k sr = sr + + sr 2 temperature ( c) 0 slew rate (v/ s) 100 600 500 200 300 400 50 ?5 25 100 125 50 75 0 135859 g23 v s = 5v v s = 15v sr + + sr sr = ? 2 a v = 2 input level (v p-p ) 0 slew rate (v/ s) 200 300 100 1000 900 800 700 400 600 500 0 8 16 20 12 4 21018 14 6 135859 g24 t a = 25 c v s = 15v a v = ? r f = r g = 2k sr = sr + + sr 2 frequency (hz) 10 0.0001 total harmonic distortion (%) 0.01 100 100k 135859 g25 1k 0.001 10k a v = ? a v = 1 t a = 25 c v o = 3v rms r l = 2k frequency (hz) 100k 1m 0 output voltage (v p-p ) 30 10m 135859 g26 15 5 10 25 20 a v = ? a v = 1 v s = 15v r l = 2k a v = 1, 1% max distortion a v = ?, 2% max distortion frequency (hz) 100k 1m 0 output voltage (v p-p ) 10 10m 135859 g27 6 2 4 8 a v = ? a v = 1 v s = 5v r l = 2k 2% max distortion slew rate vs input level total harmonic distortion vs frequency undistorted output swing vs frequency ( 15v) undistorted output swing vs frequency ( 5v) slew rate vs supply voltage slew rate vs temperature gain and phase vs frequency common mode rejection ratio vs frequency power supply rejection ratio vs frequency typical perfor a ce characteristics uw
9 lt1358/lt1359 135859fb frequency (hz) 100k 200k 400k ?0 ?0 ?0 ?0 ?0 ?0 harmonic distortion (db) ?0 10m 135859 g28 1m 2m 4m v s = 15v v o = 2v p-p r l = 2k a v = 2 3rd harmonic 2nd harmonic 135859 g29 frequency (hz) 100k ?20 crosstalk (db) ?0 1m 100m 10m ?0 ?0 ?0 ?0 ?0 ?00 ?10 t a = 25 c v in = 0dbm r l = 500 ? a v = 1 capacitive load (f) 10p 0 overshoot (%) 100 1 135859 g30 1000p 0.01 50 100p 0.1 a v = 1 a v = ? t a = 25 c v s = 15v small-signal transient (a v = 1) small-signal transient (a v = ?) small-signal transient (a v = ?, c l = 1000pf) large-signal transient (a v = 1, c l = 10,000pf) large-signal transient (a v = ?) large-signal transient (a v = 1) 2nd and 3rd harmonic distortion vs frequency capacitive load handling crosstalk vs frequency typical perfor a ce characteristics uw 135859 g31 135859 g32 135859 g36 135859 g35 135859 g33 135859 g34
10 lt1358/lt1359 135859fb layout and passive components the lt1358/lt1359 amplifiers are easy to use and toler- ant of less than ideal layouts. for maximum performance (for example, fast 0.01% settling) use a ground plane, short lead lengths, and rf-quality bypass capacitors (0.01 f to 0.1 f). for high drive current applications use low esr bypass capacitors (1 f to 10 f tantalum). the parallel combination of the feedback resistor and gain setting resistor on the inverting input combine with the input capacitance to form a pole which can cause peaking or oscillations. if feedback resistors greater than 5k are used, a parallel capacitor of value c f > r g x c in / r f should be used to cancel the input pole and optimize dynamic performance. for unity-gain applications where a large feedback resistor is used, c f should be greater than or equal to c in . capacitive loading the lt1358/lt1359 are stable with any capacitive load. as the capacitive load increases, both the bandwidth and phase margin decrease so there will be peaking in the frequency domain and in the transient response. coaxial cable can be driven directly, but for best pulse fidelity a resistor of value equal to the characteristic impedance of the cable (i.e., 75 ? ) should be placed in series with the output. the other end of the cable should be terminated with the same value resistor to ground. input considerations each of the lt1358/lt1359 inputs is the base of an npn and a pnp transistor whose base currents are of opposite polarity and provide first-order bias current cancellation. because of variation in the matching of npn and pnp beta, the polarity of the input bias current can be positive or negative. the offset current does not depend on npn/pnp beta matching and is well controlled. the use of balanced source resistance at each input is recommended for applications where dc accuracy must be maximized. the inputs can withstand transient differential input volt- ages up to 10v without damage and need no clamping or source resistance for protection. differential inputs, how- ever, generate large supply currents (tens of ma) as required for high slew rates. if the device is used with sustained differential inputs, the average supply current will increase, excessive power dissipation will result and the part may be damaged. the part should not be used as a comparator, peak detector or other open-loop application with large, sustained differential inputs . under normal, closed-loop operation, an increase of power dissipation is only noticeable in applications with large slewing outputs and is proportional to the magnitude of the differential input voltage and the percent of the time that the inputs are apart. measure the average supply current for the application in order to calculate the power dissipation. applicatio s i for atio wu uu
11 lt1358/lt1359 135859fb circuit operation the lt1358/lt1359 circuit topology is a true voltage feedback amplifier that has the slewing behavior of a current feedback amplifier. the operation of the circuit can be understood by referring to the simplified schematic. the inputs are buffered by complementary npn and pnp emitter followers which drive a 500 ? resistor. the input voltage appears across the resistor generating currents which are mirrored into the high impedance node. comple- mentary followers form an output stage which buffers the gain node from the load. the bandwidth is set by the input resistor and the capacitance on the high impedance node. the slew rate is determined by the current available to charge the gain node capacitance. this current is the differential input voltage divided by r1, so the slew rate is proportional to the input. highest slew rates are therefore seen in the lowest gain configurations. for example, a 10v output step in a gain of 10 has only a 1v input step, whereas the same output step in unity gain has a 10 times greater input step. the curve of slew rate vs input level illustrates this relationship. the lt1358/lt1359 are tested for slew rate in a gain of 2 so higher slew rates can be expected in gains of 1 and ?, and lower slew rates in higher gain configurations. the rc network across the output stage is bootstrapped when the amplifier is driving a light or moderate load and has no effect under normal operation. when driving a capacitive load (or a low value resistive load) the network is incompletely bootstrapped and adds to the compensa- tion at the high impedance node. the added capacitance slows down the amplifier which improves the phase margin by moving the unity-gain frequency away from the pole formed by the output impedance and the capacitive load. the zero created by the rc combination adds phase to ensure that even for very large load capacitances, the total phase lag can never exceed 180 degrees (zero phase margin) and the amplifier remains stable. power dissipation the lt1358/lt1359 combine high speed and large output drive in small packages. because of the wide supply voltage range, it is possible to exceed the maximum junction temperature under certain conditions. maximum junction temperature (t j ) is calculated from the ambient temperature (t a ) and power dissipation (p d ) as follows: lt1358n8: t j = t a + (p d x 130 c/w) lt1358s8: t j = t a + (p d x 190 c/w) lt1359n: t j = t a + (p d x 110 c/w) lt1359s: t j = t a + (p d x 150 c/w) lt1359s14: t j = t a + (p d x 160 c/w) worst case power dissipation occurs at the maximum supply current and when the output voltage is at 1/2 of either supply voltage (or the maximum swing if less than 1/2 supply voltage). for each amplifier p dmax is: p dmax = (v + ?v )(i smax ) + (v + /2) 2 /r l example: lt1358 in s8 at 70 c, v s = 15v, r l = 500 ? p dmax = (30v)(2.9ma) + (7.5v) 2 /500 ? = 200mw t jmax = 70 c + (2 x 200mw)(190 c/w) = 146 c applicatio s i for atio wu uu
12 lt1358/lt1359 135859fb 135859 ss01 out +in ?n v + v r1 500 ? c c r c c sche atic w w si plified
13 lt1358/lt1359 135859fb n8 1098 0.100 (2.54) bsc 0.065 (1.651) typ 0.045 ?0.065 (1.143 ?1.651) 0.130 0.005 (3.302 0.127) 0.020 (0.508) min 0.018 0.003 (0.457 0.076) 0.125 (3.175) min 12 3 4 87 6 5 0.255 0.015* (6.477 0.381) 0.400* (10.160) max 0.009 ?0.015 (0.229 ?0.381) 0.300 ?0.325 (7.620 ?8.255) 0.325 +0.035 0.015 +0.889 0.381 8.255 () *these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.010 inch (0.254mm) n14 1098 0.020 (0.508) min 0.125 (3.175) min 0.130 0.005 (3.302 0.127) 0.045 ?0.065 (1.143 ?1.651) 0.065 (1.651) typ 0.018 0.003 (0.457 0.076) 0.100 (2.54) bsc 0.005 (0.125) min 0.255 0.015* (6.477 0.381) 0.770* (19.558) max 3 1 2 4 5 6 7 8 9 10 11 12 13 14 0.009 ?0.015 (0.229 ?0.381) 0.300 ?0.325 (7.620 ?8.255) 0.325 +0.035 0.015 +0.889 0.381 8.255 () *these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.010 inch (0.254mm) u package descriptio n8 package 8-lead pdip (narrow 0.300) (ltc dwg # 05-08-1510) n package 14-lead pdip (narrow 0.300) (ltc dwg # 05-08-1510) dimension in inches (millimeters) unless otherwise noted.
14 lt1358/lt1359 135859fb 0.016 ?0.050 (0.406 ?1.270) 0.010 ?0.020 (0.254 ?0.508) 45 0 ?8 typ 0.008 ?0.010 (0.203 ?0.254) so8 1298 0.053 ?0.069 (1.346 ?1.752) 0.014 ?0.019 (0.355 ?0.483) typ 0.004 ?0.010 (0.101 ?0.254) 0.050 (1.270) bsc 1 2 3 4 0.150 ?0.157** (3.810 ?3.988) 8 7 6 5 0.189 ?0.197* (4.801 ?5.004) 0.228 ?0.244 (5.791 ?6.197) dimension does not include mold flash. mold flash shall not exceed 0.006" (0.152mm) per side * dimension does not include interlead flash. interlead flash shall not exceed 0.010" (0.254mm) per side ** 0.016 ?0.050 (0.406 ?1.270) 0.010 ?0.020 (0.254 ?0.508) 45 0 ?8 typ 0.008 ?0.010 (0.203 ?0.254) 1 2 3 4 5 6 7 8 0.150 ?0.157** (3.810 ?3.988) 16 15 14 13 0.386 ?0.394* (9.804 ?10.008) 0.228 ?0.244 (5.791 ?6.197) 12 11 10 9 s16 1098 0.053 ?0.069 (1.346 ?1.752) 0.014 ?0.019 (0.355 ?0.483) typ 0.004 ?0.010 (0.101 ?0.254) 0.050 (1.270) bsc dimension does not include mold flash. mold flash shall not exceed 0.006" (0.152mm) per side * dimension does not include interlead flash. interlead flash shall not exceed 0.010" (0.254mm) per side ** u package descriptio dimension in inches (millimeters) unless otherwise noted. s package 16-lead plastic small outline (narrow 0.150) (ltc dwg # 05-08-1610) s8 package 8-lead plastic small outline (narrow 0.150) (ltc dwg # 05-08-1610)
15 lt1358/lt1359 135859fb information furnished by linear technology corporation is believed to be accurate and reliable. however, no responsibility is assumed for its use. linear technology corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. u package descriptio 1 n 2 3 4 .150 ?.157 (3.810 ?3.988) note 3 14 13 .337 ?.344 (8.560 ?8.738) note 3 .228 ?.244 (5.791 ?6.197) 12 11 10 9 5 6 7 n/2 8 .016 ?.050 (0.406 ?1.270) .010 ?.020 (0.254 ?0.508) 45 0 ?8 typ .008 ?.010 (0.203 ?0.254) s14 0502 .053 ?.069 (1.346 ?1.752) .014 ?.019 (0.355 ?0.483) typ .004 ?.010 (0.101 ?0.254) .050 (1.270) bsc .245 min n 123 n/2 .160 .005 recommended solder pad layout .045 .005 .050 bsc .030 .005 typ inches (millimeters) note: 1. dimensions in 2. drawing not to scale 3. these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .006" (0.15mm) s package 14-lead plastic small outline (narrow .150 inch) (reference ltc dwg # 05-08-1610) dimension in inches (millimeters) unless otherwise noted.
16 lt1358/lt1359 135859fb ? linear technology corporation 2005 lt/lt 1005 rev b ? printed in usa linear technology corporation 1630 mccarthy blvd., milpitas, ca 95035-7417 (408) 432-1900 fax: (408) 434-0507 www.linear.com part number description comments lt1357 25mhz, 600v/ s op amp single version of lt1358/lt1359 lt1361/lt1362 dual and quad 50mhz, 800v/ s op amps faster version of lt1358/lt1359, v os = 1mv, i s = 4ma/amplifier lt1355/lt1356 dual and quad 12mhz, 400v/ s op amps lower power version of lt1358/lt1359, v os = 0.8mv, i s = 1ma/amplifier lt1812/lt1813/ single/dual/quad 100mhz, 750v/ s op amps 3.6ma/amplifier, sot-23, msop-8 and ssop-16 packages lt1814 related parts 135859 ta03 v in trim r5 for gain trim r1 for common-mode rejection bw = 250khz r1 20k r2 2k r5 432 ? r4 20k r3 2k v out + + + 1/2 lt1358 1/2 lt1358 135859 ta04 v in 2.61k 5.11k 47pf 3.4k 100pf 1000pf v out + + 2.61k 5.62k 3.4k 330pf 1/2 lt1358 1/2 lt1358 typical applicatio s u instrumentation amplifier 200khz, 4th order butterworth filter a r r r r r r rr r v =+ + ? ? ? ? ? ? + + ? ? ? ? ? ? = 4 3 1 1 2 2 1 3 4 23 5 104 4

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